diff options
| author | Jack | 2015-10-12 16:45:21 -0700 |
|---|---|---|
| committer | Jack | 2015-10-12 16:45:21 -0700 |
| commit | 0c288c48382f1b31fbfb1c202867fb444e46136c (patch) | |
| tree | 6b3498b1ebae1cbd3f7298165cae631a7f6c6bd1 /src/main/antlr4/FIRRTL.g4 | |
| parent | d1295b29d89e07645c3a4e08f2f923455a868482 (diff) | |
Added support for no width to mean unknown, and print nothing instead of <?> for unknown width. Also added test to check this
Diffstat (limited to 'src/main/antlr4/FIRRTL.g4')
| -rw-r--r-- | src/main/antlr4/FIRRTL.g4 | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/src/main/antlr4/FIRRTL.g4 b/src/main/antlr4/FIRRTL.g4 index 08697bb1..d9f3d18f 100644 --- a/src/main/antlr4/FIRRTL.g4 +++ b/src/main/antlr4/FIRRTL.g4 @@ -1,7 +1,3 @@ -// Jack Koenig -// UC Berkeley ASPIRE Lab -// July 9, 2015 - grammar FIRRTL; /*------------------------------------------------------------------ @@ -33,8 +29,8 @@ portKind ; type - : 'UInt' '<' width '>' - | 'SInt' '<' width '>' + : 'UInt' ('<' width '>')? + | 'SInt' ('<' width '>')? | 'Clock' | '{' field* '}' // Bundle | type '[' IntLit ']' // Vector @@ -93,8 +89,8 @@ dir // TODO implement // What is exp? exp - : 'UInt' '<' width '>' '(' (IntLit) ')' // FIXME what does "ints" mean? - | 'SInt' '<' width '>' '(' (IntLit) ')' // FIXME same + : 'UInt' ('<' width '>')? '(' (IntLit) ')' // FIXME what does "ints" mean? + | 'SInt' ('<' width '>')? '(' (IntLit) ')' // FIXME same | id // Ref | exp '.' id // FIXME Does this work for no space? | exp '[' IntLit ']' |